Here's the proper way to delete the Windows.old and $Windows.BT folders: 1  Click Start and type in disk cleanup (no quotes). Wait for the Disk Cleanup utility to show up in the Start menu and click it. 2  A window will appear asking you which hard drive you want to clean up. Choose the C drive (which is default) and click OK.
The A-and B-type HCs are very similar in appearance in the rabbit retina too. Other species may have more than two types of horizontal cell and often these other types are concerned with color coding (see chapter on Horizontal cells by Perlman et al., webvision).
In the retina are cells responsible for detecting light, and sending this information to the brain. There are two types of cell, the rod and cone. Below is the structure of a rod cell, however the cone cell has the same features labeled, but is differently shaped. Rod cells are responsible for detecting light/dark.They contain a pigment called rhodopsin.he table below outlines the differences between rods and cones in terms of their sensitivity and visual acuity, which is the degree of detail it can see. So a high visual acuity means that one can see finer details.